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WPF ListView 列表

news 2025/11/2 13:39:13

列表隐藏某一行，几种方法
1、使用CollectionViewSource过滤器，这种方法在需要隐藏某一行刷新的时候不完美，model和view由混在一起了

<!--xaml中代码-->
<Window.Resources><converter:IndexConverter x:Key="idxcvt"/><!--列表过滤器--><CollectionViewSource x:Key="FilteredItems" Source="{Binding ListChipInfos}" Filter="ListItem_Filter"><CollectionViewSource.SortDescriptions><scm:SortDescription PropertyName="State" Direction="Ascending"/></CollectionViewSource.SortDescriptions></CollectionViewSource><Style x:Key="ListViewItemStyle" TargetType="{x:Type ListViewItem}"><Setter Property="HorizontalContentAlignment" Value="Center"/><!--对应方法3--><Setter Property="Visibility" Value="{Binding IsVisible}"/></Style>
</Window.Resources><ListView Grid.Row="0" Grid.Column="0" Grid.RowSpan="6" x:Name="ltShowChip"FontSize="16" Height="280" Opacity="0.8"HorizontalAlignment="Center"VerticalAlignment="Top"ItemContainerStyle="{StaticResource ListViewItemStyle}"ItemsSource="{Binding Source={StaticResource FilteredItems}}"><ListView.View><GridView><GridViewColumn Header="序号" Width="40"DisplayMemberBinding="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ListViewItem}}, Converter={StaticResource idxcvt}}"/><GridViewColumn Header="芯片ID" Width="Auto" DisplayMemberBinding="{Binding Path=sensor_chip_id}" /><GridViewColumn Header="日期" Width="100" DisplayMemberBinding="{Binding Path=date}" /></GridView></ListView.View>
</ListView>//cs代码
//列表序号转换器
public class IndexConverter : IValueConverter
{public object Convert(object value, Type TargetType, object parameter, CultureInfo culture){ListViewItem item = (ListViewItem)value;ListView listView = ItemsControl.ItemsControlFromItemContainer(item) as ListView;int index = listView.ItemContainerGenerator.IndexFromContainer(item) + 1;return index.ToString();}public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture){throw new NotImplementedException();}
}public class ChipInfo:INotifyPropertyChanged
{public event PropertyChangedEventHandler PropertyChanged;public string sensor_chip_id { get; set; } //芯片IDpublic long date_write { get; set; } = (DateTime.UtcNow.Ticks - new DateTime(1970, 1, 1, 0, 0, 0, 0).Ticks) / 10000; //时间戳public bool IsVisible{get;set;}//private Visibility mIsVisible = Visibility.Visible; //方法3//public Visibility IsVisible//{//	get => mIsVisible;//	set//	{//		mIsVisible = value;//		PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(IsVisible)));//	}//}
}private void ListItem_Filter(object sender, System.Windows.Data.FilterEventArgs e)
{if (e.Item is ChipInfo item){e.Accepted = item.IsVisible;}
}Dispatcher.InvokeAsync(() => 
{ CollectionViewSource vs = (CollectionViewSource)Resources["FilteredItems"];if (vs != null){vs.View.Refresh();//刷新}
});

2、方法笨办法，直接把删除绑定列表数据

List<ChipIdInfo>ChipInfos=[]; //全部数据
ObservableCollection<ChipIdInfo> ListChipInfos=[]; //列表绑定对象
//过滤数据后重置列表绑定
ListChipInfos = new ObservableCollection<ChipIdInfo>(ChipInfos);